He does not have much knowledge on hinduism and Vishnu. He just tries to play with language to make his work look genuine. For example, in trivikrama chapter you would not find full information and details on the avatar. Instead the chapter is mostly about lakshmi, indra and asuras. Dev dutt does not even have analyzed what these stories in the purana really want to convey. He tells only the literal meaning and not the true knowledge which our ancients had about creation, space,time,and spirituality.